| #!/bin/sh |
| # SPDX-License-Identifier: GPL-2.0 |
| # description: event trigger - test inter-event histogram trigger onchange action |
| |
| fail() { #msg |
| echo $1 |
| exit_fail |
| } |
| |
| if [ ! -f set_event ]; then |
| echo "event tracing is not supported" |
| exit_unsupported |
| fi |
| |
| grep -q "onchange(var)" README || exit_unsupported # version issue |
| |
| echo "Test onchange action" |
| |
| echo 'hist:keys=comm:newprio=prio:onchange($newprio).save(comm,prio) if comm=="ping"' >> /sys/kernel/debug/tracing/events/sched/sched_waking/trigger |
| |
| ping $LOCALHOST -c 3 |
| nice -n 1 ping $LOCALHOST -c 3 |
| |
| if ! grep -q "changed:" events/sched/sched_waking/hist; then |
| fail "Failed to create onchange action inter-event histogram" |
| fi |
| |
| exit 0 |
